Ultraviolet air purifier



FIG. 1 is a front perspective view of an ultraviolet air purifier, showing my new design;

FIG. 2 is a rear perspective view, thereof;

FIG. 3 is a front view, thereof;

FIG. 4 is a rear view, thereof;

FIG. 5 is a view of the left, thereof;

FIG. 6 is a view of the right side, thereof;

FIG. 7 is a top view, thereof; and,

FIG. 8 is a bottom view, thereof.

The dashed lines and all areas within them depict portions of the ultraviolet air purifier that form no part of the disclosed and claimed design herein. 

CLAIM The ornamental design for an ultraviolet air purifier, as shown and described. 